Using the new JSONP callback support in the PGXN API, I just added a sidebar to my personal blog that shows a list of all my PGXN distributions. The code is simple:

<div class="links">
    <h2>PGXN Code</h2>
    <script type="text/javascript">
    function pgxn_distros(data) {
        document.write('<dl>');
        for (dist in data.releases) {
            document.write(
                '<dt><a href=http://pgxn.org/dist/' + dist +
                '>' + dist + '</a></dt>' +
                '<dd>' + data.releases[dist].abstract + '</dd>'
            );
        }
        document.write('</dl>');
    }
  </script>
  <script type="text/javascript"
     src="http://api.pgxn.org/user/theory.json?callback=pgxn_distros">
  </script>
</div>

And the output looks like this:

Not bad, eh? AS you can see, JSONP is dead easy to use with the JSON files served by the JSON API. Try that, CPAN!